It's preferable to use with a press but there is a hole for a 12mm bolt (the bolt method is not recommended at this size).

100% infill is recommended but also works down to about 50% infill with a few mm thick walls. Has been tested on up to 1.5mm steel and 3mm aluminium sheets without issue with 100% infill. No support needed for the lettering on the side.

I added information on side of the model to show what size the tool is and changed the diameter of the bolt hole to accommodate metric hardware. Only available as individual files since the models are so large.